<?php 
  // Le .htaccess DOIT contenir la chaîne : 
  // SetEnv ENV_HTACCESS_READING true 

  if (array_key_exists ('ENV_HTACCESS_READING', $_SERVER)) 
  { 
    echo "Yes ! .htaccess is read and used !!\n"; 
  } 
  else 
  { 
    echo "BAD : The .htaccess is not read : add 'AllowOverride All' in your Apache configuration\n"; 
  }